Simple use of vue to realize the monitoring of the shopping cart The
main use of vue monitoring, if you are interested, you can look at the implementation process
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>利用vue实现对购物车的监听</title>
<script src="../vue.js"></script>
<style type="text/css">
table{
border: 1px solid black;
width: 100%;
text-align: center;
}
th{
height: 50px;
}
th, td{
border-bottom: 1px solid #ddd;
border-right: 1px solid #ddd;
}
</style>
</head>
<body>
<div id="app">
<h1>订单系统</h1>
<table>
<tr>
<th>编号</th>
<th>名称</th>
<th>品牌</th>
<th>价格</th>
<th>数量</th>
<th>操作</th>
</tr>
<tr v-for="val in items">
<td>{{val.id}}</td>
<td>{{val.name}}</td>
<td>{{val.pinpai}}</td>
<td>{{val.price}}</td>
<td>
<!-- 如果count等于0执行v-bind
绑定一个点击事件 -->
<button v-bind:disabled="val.count === 0" @click="val.count-=1">-</button>
{{val.count}}
<button @click="val.count+=1">+</button>
</td>
<td>
<button v-on:click="val.count = 0">移除</button>
</td>
</tr>
</table>
<!-- 调用totalPrice -->
你所需要支付总额为：${{totalPrice()}}
</div>
<script type="text/javascript" charset="UTF-8">
var vm = new Vue({
el:"#app",
data:{
items:[{
id:1,
name:'上衣',
pinpai:'阿迪达斯',
price:100,
count:1
},
{
id:2,
name:'裤子',
pinpai:'安踏',
price:528,
count:1
},
{
id:3,
name:'鞋子',
pinpai:'耐克',
price:999,
count:1
}]
},
methods:{
totalPrice:function(){
var totalPri = 0;
//总价等于数量乘以数量
for(var i=0;i<this.items.length;i++){
totalPri += this.items[i].price*this.items[i].count;
}
return totalPri;
}
}
});
</script>
</body>
</html>
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